Sentences with phrase «point level measurement»

Not exact matches

Watch this webinar to learn how to define common entry points for physical contaminants and how x-ray systems help to strengthen quality control programs by performing additional quality assurance checks such as component count, fill level inspection, mass measurement and more.

Although you can also look at football helmet ratings, the NOCSAE cautions «against an over-reliance on any individual data point, rating or measurement which could lead to inaccurate conclusions or even a false sense of security that one helmet brand or model guarantees a measurably higher level of concussion protection than another for a particular athlete.»

Recent methane measurements at Terceira Island, Azores, Portugal and Tae - ahn Peninsula, Republic of Korea (See http://www.esrl.noaa.gov/gmd/dv/iadv/index.php) in the context of outlier data points over the last decade at sites such as Storhofdi, Vestmannaeyjar, Iceland, and reports of methane releases from the Arctic seabed, tell us that at current levels of AGW, the Earth's sea - floor methane systems are not stable.

The standard error of measurement at this achievement level was 15 scale score points.

Accordingly, and also per the research, this is not getting much better in that, as per the authors of this article as well as many other scholars, (1) «the variance in value - added scores that can be attributed to teacher performance rarely exceeds 10 percent; (2) in many ways «gross» measurement errors that in many ways come, first, from the tests being used to calculate value - added; (3) the restricted ranges in teacher effectiveness scores also given these test scores and their limited stretch, and depth, and instructional insensitivity — this was also at the heart of a recent post whereas in what demonstrated that «the entire range from the 15th percentile of effectiveness to the 85th percentile of [teacher] effectiveness [using the EVAAS] cover [ed] approximately 3.5 raw score points [given the tests used to measure value - added];» (4) context or student, family, school, and community background effects that simply can not be controlled for, or factored out; (5) especially at the classroom / teacher level when students are not randomly assigned to classrooms (and teachers assigned to teach those classrooms)... although this will likely never happen for the sake of improving the sophistication and rigor of the value - added model over students» «best interests.»

Note that this sampling noise in the tide gauge data most likely comes from the water sloshing around in the ocean under the influence of winds etc., which looks like sea - level change if you only have a very limited number of measurement points, although this process can not actually change the true global - mean sea level.

Given all the independent lines of evidence pointing to average surface warming over the last few decades (satellite measurements, ocean temperatures, sea - level rise, retreating glaciers, phenological changes, shifts in the ranges of temperature - sensitive species), it is highly implausible that it would lead to more than very minor refinements to the current overall picture.

ScienceDaily (Oct. 3, 2008)-- Arctic sea ice extent during the 2008 melt season dropped to the second - lowest level since satellite measurements began in 1979, reaching the lowest point in its annual cycle of melt and growth on Sept. 14, according to researchers at the University of Colorado at Boulder's National Snow and Ice Data Center.»

In 1960 painstaking measurements of the level of the gas in the atmosphere by Charles Keeling, a young scientist with an obsession for accuracy, drove home the point.

I attribute both the «global» (dominated by Atlantic basin measurement points) and European supposed «rise» in sea level to tectonic subsidence at the passive margin combined with the trailing edge of the great melt of 10K years ago.

Only in the past few decades have scientists begun the measurements necessary to establish a relationship between current carbon levels and temperatures, and the science conducted since then has consistently pointed in one direction: that rising greenhouse gas emissions, arising from our use of fossil fuels and our industries, lead to higher temperatures.

«Recent indirect data and direct measurements from ice cores point towards a lsquopre - industrialrsquo CO2 level of around 260 — 270 ppmv, considerably below the commonly assumed value of 290 ppmv.

I would point to TSI, OHC, sea level, humidity, temps, Sea Ice, nothing is good enough for either side except the highly adjusted surface temps from GISS and not even they fully support the models and appear to conflict with other measurements!!

As he pointed out, a dominant unforced contribution to surface warming relative to forced trends would be expected to be accompanied by a trend of declining OHC, which is inconsistent with the observed trends averaged over the past half century as evidenced by mixed layer temperature measurements and sea level rise.

Indeed, the first point made in this Skeptical Science article is «A variety of different measurements find steadily rising sea levels over the past century.».

The authors instead assume from other published studies of tide gauge measurements that the ~ 1.5 mm / yr sea level rise over the past 150 + years began at that point in time.

At the time, we (correctly) pointed out that this result was going to be hard to reconcile with continued increases in sea level rise (driven in large part by thermal expansion effects), and that there may still be issues with way that the new ARGO floats were being incorporated into the ocean measurement network.

Yes, sea level measurement and analysis is highly complex and problematic as Stefan points out.

Moreover, CP and DS showed strong covariation at each measurement time point, but only one significant positive cross-lagged association between the two processes, indicating that higher levels of DS at time 3 were associated with higher levels of CP 1 year later.

A total of 345 children (40.6 % female) presenting with a high level of CP in early elementary school (mean age at study inception = 8.52; SD =.94) were evaluated annually over a four - year period (5 measurement time points).